I tried working with it but had to give it up for practical purposes. Whereas the focus with HSL is on the Lightness part and the Saturation is made to fit, OKHCL does it differently. It pushes the Chroma part to it's technical limits and abuses the Hue to make it fit, but we just do not understand Chroma intuitively.
I am waiting for OKHSL where the adjustments will bu much smaller and do not lead to absurd changes in intent.
I already had a discussion about it somewhere else (https://www.reddit.com/r/css/comments/1jv5f0r/hue_is_an_issu...)